Hocosa underwear is offered in two variations: 100% merino wool (the softest of all wools) or a 70/30 wool/silk blend. The wool chosen for Hocosa woolens is KbT-Certified Organic wool, which ensures not only that the wool is free of pesticides, but that high working standards have been met for those working in all stages of production. Hocosa woolens provide comfort & well-being.